Finding the Fourth Proportional to 7,100.56, 10,654.68 and 3,640.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,100.56 : 10,654.68 = 3,640.72 : x
2. Step 2: Convert to fraction form
   7,100.56/10,654.68 = 3,640.72/x
3. Step 3: Cross multiply
   7,100.56x = 10,654.68 × 3,640.72
4. Step 4: Simplify right side
   7,100.56x = 38,790,706.57
5. Step 5: Solve for x
   x = 38,790,706.57/7,100.56
6. Step 6: Final answer
   x = 5,463.05